John Deere 9120, 9220, 9320, 9420, 9520 and 9620 Tractors Diagnosis and Tests Manual (TM1972)

These articulated tractors carry a lot of controllers, and TM1972 sorts trouble codes by controller before walking through symptoms and system tests. If your tractor is showing a code you don't recognize, this manual tells you which system it belongs to and how to test it.

Fits

9120 with PowerTech 8.1L (CTM255); 9220 through 9620 with PowerTech 10.5L or 12.5L (CTM86 / CTM100). TM1972, January 2013.

What this manual covers

Service codes cover the ACU, AMS, ASU, ATC, CCU, ECU, HCU, ICU, JDL, PCU and others. The observable symptoms and system diagnosis sections cover axles, electrical, hitch, HVAC (the CLIMATRAK system is split at S.N. 010001), the operator station, PowerShift and Manual Shift transmissions, PTO, selective control valves, standard steering and AutoTrac. Hydraulic diagnostics come in three versions: Standard, Scraper High Flow and Ag High Flow. Engine checks and fuel system diagnostics finish the book.

Table of contents

• Section 210 - General - safety, general specifications and references
• Section 211 - Service Codes - fault codes by controller - ACU, AMS, ASU, ATC, CCU, ECU, HCU, ICU, JDL, PCU and more
• Section 212 - Observable Symptoms - axles, electrical, hitch, HVAC, operator station, transmission, PTO, steering
• Section 213 - System Diagnosis - PowerShift and Manual Shift transmission, steering, AutoTrac, hydraulic system
• Section 220 - Engine - operational checks, tests and adjustments, theory of operation
• Section 230 - Fuel and Air - fuel system diagnostics

Check before you buy

Check your hydraulic configuration and serial number. Repairs are in TM1623, also in our catalog.

PDF, English. You get the download link right after checkout. Sold by an independent seller, not affiliated with or endorsed by John Deere.